Grado utilizes a special processing method to increase the material's porosity.

歌德采用了特殊的处理方法来提高材料的孔隙度。

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Due to the welding are special processing method, people set up a lot of standard to measure the quality.

鉴于焊接加工的特殊性，人们建立了些标准作为质量管理的准绳。

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EDM (Electro Discharge Machining) is one kind of special processing method, and it is widely used in mechanical area.

电火花加工属于一种特殊的加工方式，在机械加工领域中逐渐得到了广泛的应用。

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